name: Stale handler

on:
  push:                               # when push this files to branches....
    branches:
      - 'main'
      - 'gh-actions/test'
    paths:
      - '.github/workflows/stale.yml' #    - this workflow
  workflow_dispatch:                  # manually
    inputs:
      debug-only:
        type: boolean
        description: 'If enabled, debug mode is on and then API calls that can alter your issues will not happen'
        required: true
        default: true
  schedule:                           # or
    - cron: "0 0 * * *"               # once a day at 00:00 o'clock

permissions:
  # no checkout/branching needed
  contents: none

# This allows a subsequently queued workflow run to interrupt/wait for previous runs
concurrency:
  group: '${{ github.workflow }}'
  cancel-in-progress: false  # true: interrupt, false = wait for

jobs:
  stale:
    name: Staler job
    runs-on: ubuntu-latest
    outputs:
      # "XXX-len": the length of the "XXX" output object
      staled-issues:     ${{ steps.set-staled.outputs.issues }}
      staled-issues-len: ${{ steps.set-staled.outputs.issues-len }}
      staled-prs:     ${{ steps.set-staled.outputs.prs }}
      staled-prs-len: ${{ steps.set-staled.outputs.prs-len }}
      closed-issues:     ${{ steps.set-closed.outputs.issues }}
      closed-issues-len: ${{ steps.set-closed.outputs.issues-len }}
      closed-prs:     ${{ steps.set-closed.outputs.prs }}
      closed-prs-len: ${{ steps.set-closed.outputs.prs-len }}
    # enable write access rights to allow bot comments and labeling
    permissions:
      issues: write
      pull-requests: write
    steps:
      - name: Stale issues
        uses: actions/stale@v9
        id: stale-issues
        with:
          debug-only: ${{ github.event.inputs.debug-only == 'true' }}
          operations-per-run: 30
          days-before-stale: 60
          days-before-close: 30
          ignore-updates: false
          remove-stale-when-updated: true
          stale-issue-label: "stale"
          close-issue-label: "stale: closed"
          stale-issue-message: |
            This issue has been automatically marked as stale because it has not had recent activity during last 60 days :sleeping:

            It will be closed in 30 days if no further activity occurs. To unstale this issue, remove stale label or add a comment with a detailed explanation.

            There can be many reasons why some specific issue has no activity. The most probable cause is lack of time, not lack of interest.

            Thank you for your patience :heart:
          close-issue-message: |
            This issue has been automatically closed because it has been inactive during the last 30 days since being marked as stale.

            As author or maintainer, it can always be reopened if you see that carry on been useful.

            Anyway, thank you for your interest in contribute :heart:
          close-issue-reason: not_planned
          exempt-issue-labels: "blocked,must,should,keep,:busts_in_silhouette: discussion,:eyes: Needs Review,:pushpin: pinned"
          # disable PR processing at all (this step is for treat issues)
          days-before-pr-stale: -1
          days-before-pr-close: -1
          ignore-pr-updates: true
          remove-pr-stale-when-updated: false
          stale-pr-label: " "

      - name: Print outputs for issues
        run: echo ${{ format('{0},{1}', toJSON(steps.stale-issues.outputs.staled-issues-prs), toJSON(steps.stale-issues.outputs.closed-issues-prs)) }}

      - name: Stale Pull Requests
        uses: actions/stale@v9
        id: stale-prs
        with:
          debug-only: ${{ github.event.inputs.debug-only == 'true' }}
          operations-per-run: 30
          days-before-stale: 60
          days-before-close: 30
          ignore-updates: false
          remove-stale-when-updated: true
          stale-pr-label: "stale"
          close-pr-label: "stale: closed"
          stale-pr-message: |
            This Pull Request has been automatically marked as stale because it has not had recent activity during last 60 days :sleeping:

            It will be closed in 30 days if no further activity occurs. To unstale this PR, draft it, remove stale label, comment with a detailed explanation or push more commits.

            There can be many reasons why some specific PR has no activity. The most probable cause is lack of time, not lack of interest.

            Thank you for your patience :heart:
          close-pr-message: |
            This Pull Request has been automatically closed because it has been inactive during the last 30 days since being marked as stale.

            As author or maintainer, it can always be reopened if you see that carry on been useful.

            Anyway, thank you for your interest in contribute :heart:
          exempt-draft-pr: true
          exempt-pr-labels: "blocked,must,should,keep,:busts_in_silhouette: discussion,:eyes: Needs Review"
          delete-branch: false  # if true, job needs permissions "contents: write"
          # disable issues processing at all (this step is for treat PRs)
          days-before-issue-stale: -1
          days-before-issue-close: -1
          ignore-issue-updates: true
          remove-issue-stale-when-updated: false
          stale-issue-label: " "

      - name: Print outputs for PRs
        run: echo ${{ format('{0},{1}', toJSON(steps.stale-prs.outputs.staled-issues-prs), toJSON(steps.stale-prs.outputs.closed-issues-prs)) }}

      ## Removing private properties from each JSON object and compute array length
      ## TODO: Delete these set-* workarounds when resolve actions/stale#806 ?
      - name: Set staled
        id: set-staled
        run: |
          echo $INPUT_ISSUES  \
            | jq --compact-output --raw-output 'del(.[] | .[to_entries[] | .key | select(startswith("_"))])'  \
            | sed -e 's/^/issues=/'  \
            >> $GITHUB_OUTPUT
          echo $INPUT_ISSUES  \
            | jq --raw-output '. | length'  \
            | sed -e 's/^/issues-len=/'  \
            >> $GITHUB_OUTPUT

          echo $INPUT_PRS  \
            | jq --compact-output --raw-output 'del(.[] | .[to_entries[] | .key | select(startswith("_"))])'  \
            | sed -e 's/^/prs=/'  \
            >> $GITHUB_OUTPUT
          echo $INPUT_PRS  \
            | jq --raw-output '. | length'  \
            | sed -e 's/^/prs-len=/'  \
            >> $GITHUB_OUTPUT
        env:
          INPUT_ISSUES: ${{ steps.stale-issues.outputs.staled-issues-prs }}
          INPUT_PRS:    ${{ steps.stale-prs.outputs.staled-issues-prs }}
      - name: Set closed
        id: set-closed
        run: |
          echo $INPUT_ISSUES  \
            | jq --compact-output --raw-output 'del(.[] | .[to_entries[] | .key | select(startswith("_"))])'  \
            | sed -e 's/^/issues=/'  \
            >> $GITHUB_OUTPUT
          echo $INPUT_ISSUES  \
            | jq --raw-output '. | length'  \
            | sed -e 's/^/issues-len=/'  \
            >> $GITHUB_OUTPUT

          echo $INPUT_PRS  \
            | jq --compact-output --raw-output 'del(.[] | .[to_entries[] | .key | select(startswith("_"))])'  \
            | sed -e 's/^/prs=/'  \
            >> $GITHUB_OUTPUT
          echo $INPUT_PRS  \
            | jq --raw-output '. | length'  \
            | sed -e 's/^/prs-len=/'  \
            >> $GITHUB_OUTPUT
        env:
          INPUT_ISSUES: ${{ steps.stale-issues.outputs.closed-issues-prs }}
          INPUT_PRS:    ${{ steps.stale-prs.outputs.closed-issues-prs }}

      - name: Write job summary
        run: |
          echo "### Staled issues"  \
            >> $GITHUB_STEP_SUMMARY
          # render json array to a Markdown table with an optional "No records" message if empty
          echo "$STALED_ISSUES"  \
            | jq --raw-output 'map("| [#\(.number)](\(env.GITHUB_ISSUES_URL)/\(.number)) | \(.title) |") | join("\n") | if (. == "") then "\nNo records.\n" else "\n|    | Title |\n|---:|:------|\n\(.)\n" end'  \
            >> $GITHUB_STEP_SUMMARY

          echo "### Staled pull requests"  \
            >> $GITHUB_STEP_SUMMARY
          # render json array to a Markdown table with an optional "No records" message if empty
          echo "$STALED_PRS"  \
            | jq --raw-output 'map("| [#\(.number)](\(env.GITHUB_PULL_URL)/\(.number)) | \(.title) |") | join("\n") | if (. == "") then "\nNo records.\n" else "\n|    | Title |\n|---:|:------|\n\(.)\n" end'  \
            >> $GITHUB_STEP_SUMMARY

          echo "### Closed issues"  \
            >> $GITHUB_STEP_SUMMARY
          # render json array to a Markdown table with an optional "No records" message if empty
          echo "$CLOSED_ISSUES"  \
            | jq --raw-output 'map("| [#\(.number)](\(env.GITHUB_ISSUES_URL)/\(.number)) | \(.title) |") | join("\n") | if (. == "") then "\nNo records.\n" else "\n|    | Title |\n|---:|:------|\n\(.)\n" end'  \
            >> $GITHUB_STEP_SUMMARY

          echo "### Closed pull requests"  \
            >> $GITHUB_STEP_SUMMARY
          # render json array to a Markdown table with an optional "No records" message if empty
          echo "$CLOSED_PRS"  \
            | jq --raw-output 'map("| [#\(.number)](\(env.GITHUB_PULL_URL)/\(.number)) | \(.title) |") | join("\n") | if (. == "") then "\nNo records.\n" else "\n|    | Title |\n|---:|:------|\n\(.)\n" end'  \
            >> $GITHUB_STEP_SUMMARY
        env:
          GITHUB_ISSUES_URL: ${{ format('{0}/{1}/issues', github.server_url, github.repository) }}
          GITHUB_PULL_URL:   ${{ format('{0}/{1}/pull', github.server_url, github.repository) }}
          STALED_ISSUES: ${{ steps.set-staled.outputs.issues }}
          CLOSED_ISSUES: ${{ steps.set-closed.outputs.issues }}
          STALED_PRS:    ${{ steps.set-staled.outputs.prs }}
          CLOSED_PRS:    ${{ steps.set-closed.outputs.prs }}
